Well if your thinking about were all items enter and exit is through the stoma. The nucleus is the brain of the cell though and controls everything.
cell membrane
The nucleolus .
nuclear ,membrane
Cell wall
The nucleolus .
The plasma membrane answered by m.buallay
The plasma membrane answered by m.buallay
cell membrane
the cell membrane controls everything that enters or leaves a cell
It's like security guards for the White House because the membrane controls what enters and leaves the cell just like the security guards controls who enters and leaves the White House
It controls what enters or leaves the cell
Cell membreneA layer that controls what enters and what leaves the cell. Or a protective covering enclosing the entire cell.(controls substances going in and out of the cell.)